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12‐1015 rev‐B
User’s Manual Version 14.12
7.4 Grounding Test
The engine body and the vehicle chassis are always connected to the battery
negative terminal to provide the electrical return path (grounding) for all the
electrical components. Due to the surrounding environmental effect, the
surface contacts of these joints or connections of these circuits will subject to
oxidation and corrosion in a matter of time rendering them to have high
resistance in it. One typical example is the connection at the battery terminals
where oxidation and corrosion takes place very often. If these contacts were
no good then it will pose a lot of electrical problems to the vehicle.
To check the grounding condition, this Analyser will measure the resistance
from the engine body contact to the battery terminal then it will display the
results and the recommendations.
Start Testing
1. With engine OFF, place
the vehicle transmission in NEUTRAL for Manual
and PARK for Automatic and apply the parking brake.
2. Attach the Analyser clips onto the battery terminal posts and it will power up
and lights up the LCD display screen as shown (Fig.62). Press key
and the display will show as Fig. 63 below.
After
completion
of
the
input,
press
key will proceed to the next
display as shown in Fig. 64 below.
Fig.64
Grounding Test
Clip the Black clip to
engine body or the car
chassis and the Red
clip to the battery
[+] post.
Select Menu
23/12/2014 16:48
New Test
Continue Testing
Stored Results
Setup Menu
Select Test
Battery Test
Grounding Test
Starter Test
Charging Test
[Enter] to proceed
Fig.62
Fig.63
